Razor-stropping machine.



I'. BUCHLER. RAZOR STROPPING MACHINE.

APPLIOATION IILED JAN.17, 1912,

Patented June 18, 1912.

MIMI:

COLUMBIA PLANOGRAPH C0, WASHINGTON, D. c.

ISIIDOR BUCHLER, OF NEW YORK, N. Y.

RAZOR-STROPPING MACHINE.

Specification of Letters Patent.

Patented June 18, 1912.

Application filed January 17, 1912. Serial No. 671,693.

To all whom, it may concern Be it known that I, ISIDOR BUOI-ILER, subject of the King of Hungary, and a resident of New Yorkcity, in the county of New York and State of New York, have invented certain new and useful Improvements in Razor-Stropping Machines, of which the following is a specification.

The invention relates to improvements in razor stropping machines of the class comprising a frame through which a strop is threaded and is to be alternately pulled at its ends, and a blade holder located between the reaches of the strop and adapted to alternately carry the blade thereto as said reaches are alternately pulled outwardly in line with their length, the blade moving to one reach as said reach is pulled outwardly and to the other reach when it is pulled outwardly.

The object of the invention is to provide an efficient stropping machine of the class referred to possessing novel means for rocking the blade holder from oneside to the other as the alternate reaches of the strop are pulled, and cooperative mechanism for causing said holder to travel in line with its length while the blade is against the alternately outwardly moving reaches of the strop, thereby enabling the blade to receive substantially the same treatment as it would if stropped by hand.

The present invention comprises certain improvements on the razor stropping machine made the subject of Letters Patent No. 1,016,931 granted to me February 13, 1912, said improvements residing more particularly in new means for rocking and guiding the blade-holder and in a new construction and arrangement of springs and cooperating stop and guide rods for normally centering the blade-holder.

The invention will be understood from the following description, with reference to the accompanying drawings, in which:

Figure 1 is a substantially central vertical longitudinal section through a stopping machine embodying my invention, the strop being partly broken away and the section being on the dotted line 11 of Fig. 2; Fig. 2 is an end view of the same; Fig. 3 is an enlarged vertical transverse section of the same on the dotted line 3-3 of Fig. 1, and Fig. 4 is a horizontal section of the same on the dotted line 4-4 of Fig. 1.

In the drawings, 10 designates the general frame of the machine, 11 the strop, 12 a rockable frictionroller journaled between the sides 13 of said frame and over which the strop is folded, 14 a pivot-ally mounted blade-holder, 15 a blade shown as held by said holder, 16 a spirally grooved shaft upon which the blade-holder is mounted and which is journaled between the sides of said frame parallel with and below said frictionroller, 17 a gear wheel on said friction roller and to be actuated thereby, 18 a gear wheel on said spirally grooved shaft to receive motion from said gear-wheel 17 and impart motion to said shaft, and 19 a pivotally hung lever plate or bar extended trans versely between the reaches of the strop and to be rocked thereby as the alternate reaches of the strop are pulled outwardly and thereby rock the said blade-holder frame.

The frame 10 has-at its top an eye 20 to receive a loop 21, as usual, by which the machine may be suspended from or connected with a restraining hook or the like. The ends of the frame 10 are formed with openings 22 to permit the endwise travel of the blade-holder 14, and said frame 10 is provided with customary rollers 28, 24, 25 for guiding the reaches of the strop 11.

The friction-roller 12 is a plain smooth roller over which the strop 11 is folded and may rock in either direction.

The spirally grooved shaft 16 receives its movement from the roller 12 through the gear wheels 17, 18 and its movement is always reverse to that of the roller 12. shaft 16 performs two duties, one being to afford a pivotal support for the bladeholder 14, and the other to cause said blade holder to travel in line with its length during the movements of said shaft, said bladeholder automatically traveling in one direction or the other according to the direction of motion of said shaft.

The blade-holder 14 comprises a shank or body-part 26 carrying at its lower end a pair of converging jaws to receive and hold a spring 27 and blade 15, as usual, and at its upper portion being formed with a sleeve 28 which snugly, though freely, encircles the The shaft 16 and is provided with a stud or incured thereto an upwardly extending lug 9 which is confined within and adapted to travel along the slot 8 formed in the lever plate or bar 19.

The lever-bar 19 is a plain bar or plate preferably having rounded outer edges and ,being of a width greater than the normal distance between the reaches of the strop 11 so as to somewhat bulge said reaches outwardly from each other at the points where they engage the said lever. The lever 19 permits the travel of the sleeve 28 and bladeholder 14 and its special function is, independently of any action of the shaft 16, to rock the said blade-holder to that reach of the strop being pulled outwardly and to maintain said holder in such position so long as said reach is moving outwardly and then to rock said holder to the other reach of the strop when it is pulled outwardly. The lengthwise travel of the blade-holder is effected by the spirally grooved shaft 16 and its rocking movement by the plate 19, the edges of whose slot 8 act against the opposite sides of the lug 9 connected with said holder when said plate 19 is rocked by the operation of the strop 11. The plate 19 has end ears 7 by which it is freely hung from the reduced or shaft-ends of the roller 12.

The blade-holder 14 is normally held in a central position between the reaches of the strop 11 by means of two oppositely disposed springs 80, which are shown as integral with the lug 9 carried by the sleeve 28 and have their lower ends confined between and restrained by two parallel rods 31 secured in the main frame 10, and which rods in their co-action with the springs 30 serve as guides for the blade-holder during its traveling movements.

In the employment of the machine, the razor blade will be inserted endwise between the jaws of the holder 14:, and thereupon the reaches of the strop 11 will be alternately pulled to effect the stropping of the blade. A pull downwardly on the right hand reach of the strop 11, looking at Fig. 3, will cause the opposite reach of the strop to move upwardly and over the roller 12 and thereby rock the same and through the gear wheels 17 18 actuate the spiral shaft 16, and at the same time the movement of the strop 11 will cause the pivoted bar or plate 19 to take the position shown in Fig. 3 and rock the blade-holder 14 to carry the blade 15 against said right hand reach of the strop. During the downward pull on the righthand reach of the strop against the edge of the blade 15 and the movement of the roller 12 and spiral shaft 16, said shaft acting against the stud 29 of the sleeve 28 will cause the blade-holder and blade to travel endwise, thereby enabling the strop to effectually act on the blade. When the pull on the right hand reach of the strop is released, the right hand spring 30 will instantly move the blade-holder to withdraw the blade from said reach, and thereupon when the left hand reach of the strop, looking at Fig. 3, is pulled downwardly, the roller 12 and shaft 16 will be given a reverse movement thereby and the bar or plate 19 will be, by the action of the strop, reversed in position or turned from its inclination downwardly toward the right shown in Fig. 3 to a position in which it will incline downwardly toward the left, and in its said movement said bar 19 will cause the blade-holder to carry the blade to said left hand reach of the strop being pulled downwardly. During the reverse movement of the roller 12 and shaft 16 while the left hand reach of the strop 11 is being pulled downwardly, said shaft causes the blade-holder to travel endwise in a reveerse direction to that efl'ected during the downward movement of the right hand reach of the strop. Thus as the alternate reaches of the strop are pulled, the bar or plate 19 is turned to move the bladeholder to that reach of the strop moving outwardly and the shaft 16 is operated to effect the endwise travel of said holder and the blade carried thereby, said holder being turned to one side and then the other and said blade holder being caused to travel in one direction and then the other as the reaches of the strop are alternately pulled outwardly.

What I claim as my invention and desire to secure by Letters Patent, is:

1. A razor stropping machine comprising i a main frame, a spirally grooved shaft therein, a rockable friction roller mounted in said frame, an endwise movable pivotally mounted blade-holder having a part engaged in the spiral groove of said shaft, a strop folded over said roller, shaft and holder, means for transmitting motion from said roller to said shaft during the alternate outward movements of the reaches of the strop actuating said roller, and a pivotally mounted transverse plate extending between and engaged by the reaches of the strop and having a slot receiving and permitting the travel therein of a part connected with the blade-holder, said plate serving on the actuation of the strop to rock said blade holder toward the reach thereof moving outwardly.

2. A razor stropping machine comprising a main frame, a spirally grooved shaft therein, a rockable friction roller mounted in said frame, an endwise movable pivotally mounted blade-holder having a part engaged in the spiral groove of said shaft, a strop folded over said roller, shaft and holder, means for transmitting motion from said roller to said shaft during the alternate outward movements of the reaches of the strop actuating said roller, and a transverse plate having upwardly extending end ears freely hung on the shaft ends of said roller and said plate extending between and being engaged by the reaches of the strop and having a slot receiving and permitting the travel therein of a part connected with the bladeholder, said plate serving on the actuation of the strop to rock said blade holder toward the reach thereof moving outwardly.

3. A razor stropping machine comprising a main frame, a spirally grooved shaft therein, a rockable friction roller mounted in said frame, an endwise movable blade holder having a shank portion provided with'a sleeve encompassing said shaft and having a stud engaged in the spiral groove thereof to effect endwise travel of said holder during the motion of said shaft, a strop folded over said roller, shaft and holder, means for transmitting motion from said roller to said shaft during the alternate outward movements of the reaches of said roller, means to be actuated by the strop for turning the blade-holder to the reach of the strop pulled outwardly, springs (30) connected with the blade-holder, and rods (31) connected with said main frame and serving as stops and guides for said springs and blade-holder.

i. A razor stropping machine comprising a main frame, a spirally grooved shaft therein, a rockable friction roller mounted in said the strop actuating &

frame, an endwise movable blade holder having a shank portion provided with a sleeve encompassing said shaft and having a stud engaged in the spiral groove thereof to effect endwise travel of said holder during the motion of said shaft, a strop folded over said roller, shaft and holder, means for transmitting motion from said roller to said shaft during the alternate outward move ments of the reaches of the strop actuating said roller, a pivotally mounted transverse plate extending between and engaged by the reaches of the strop and having a slot receiving and permitting the travel therein of a part connected with said blade-holder, springs (30) connected with the bladeholder, and rods (31) connectedvwith said main frame and serving as stops and guides for said springs and blade-holder, said plate serving on the actuation of the strop to rock said blade-holder toward the reach thereof moving outwardly.

Signed at New York city, in the county of New York and State of New York this 16th day of January A. D. 1912.

ISIDOR BUGHLER.

CHAS. C. GILL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

